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'soft' finish when spraying - help

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  • Member since
    August 2005
  • From: Sydney, Australia
Posted by Phil_H on Saturday, March 11, 2017 5:43 PM

Credo
I've just sprayed some Tamiya paint (black), thinned with X- along with a drop of (vallejo), on several parts. All parts were primed with Alclad white primer. It's been about 3 hours dry-time, yet the sprayed paint chips quite easily.

As mentioned above, don't mix different paint brands. Even though they are both acrylics, Tamiya and Vallejo paints have quite different properties and mixing them may cause unpredictable results.

Even for straight Tamiya acrylics, threee hours isn't enough. For acrylics especially, there is a difference between dry and cured.

For flat Tamiya acrylics I'd leave it for at least 8 hours before attempting to mask over it.

For gloss colours, depending on the thickness of the coat, it can take several days to cure. Put it aside for a week and work on another project while it cures.

  • Member since
    January 2013
Posted by BlackSheepTwoOneFour on Saturday, March 11, 2017 4:20 PM

Mixing Tamiya with Vallejo paint is the cause. Vallejo paints have different chemical properties than Tamiya. I believe Vallejo have more of a vinyl coating while Tamiya doesn't.

  • Member since
    March 2017
'soft' finish when spraying - help
Posted by Credo on Friday, March 10, 2017 10:48 PM

 

Hello everyone,

 

This is my first post, as I figured it was time I reach out for some help.  Everything I've learnt so far has been self taught from watching videos and reading.  Through trial-and-error, I'd like to think I have the basics down.  However, I've got some techniques that I'm still trying to work through.  My biggest problem is that I can't seem to get a nice hard finish when applying paint.  I just can't figure it out.

 

I've just sprayed some Tamiya paint (black), thinned with X- along with a drop of (vallejo), on several parts.  All parts were primed with Alclad white primer.  It's been about 3 hours dry-time, yet the sprayed paint chips quite easily. it feels very "soft" when I scratch, or tap with my finger nail.  It just doesn't have that nice hard feeling I'm always seeing when I see other peoples’ work.

 

I'm getting frustrated because the paint just doesn't last.  Masking is a nightmare as it just pulls the paint off - no matter how long I leave the piece(s) to dry.  I'm in a very dry climate (Alberta, Canada), so very little humidity.  I can't figure out what I'm doing wrong, I was hoping I could reach out to everyone with real skills in hopes of gaining some insight on what I'm doing wrong.

 

Thank you in advance to everyone, I'm glad I finally made the decision to join a forum and get some great tips from the pros.

Cheers,

~C.

 

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